public:
DarwinTargetInfo(const llvm::Triple &Triple) : OSTargetInfo<Target>(Triple) {
- this->TLSSupported = Triple.isMacOSX() && !Triple.isMacOSXVersionLT(10, 7);
+ // By default, no TLS, and we whitelist permitted architecture/OS
+ // combinations.
+ this->TLSSupported = false;
+
+ if (Triple.isMacOSX())
+ this->TLSSupported = !Triple.isMacOSXVersionLT(10, 7);
+ else if (Triple.isiOS()) {
+ // 64-bit iOS supported it from 8 onwards, 32-bit from 9 onwards.
+ if (Triple.getArch() == llvm::Triple::x86_64 ||
+ Triple.getArch() == llvm::Triple::aarch64)
+ this->TLSSupported = !Triple.isOSVersionLT(8);
+ else if (Triple.getArch() == llvm::Triple::x86 ||
+ Triple.getArch() == llvm::Triple::arm ||
+ Triple.getArch() == llvm::Triple::thumb)
+ this->TLSSupported = !Triple.isOSVersionLT(9);
+ } else if (Triple.isWatchOS())
+ this->TLSSupported = !Triple.isOSVersionLT(2);
+
this->MCountName = "\01mcount";
}
--- /dev/null
+// RUN: not %clang_cc1 -fsyntax-only -triple x86_64-apple-macosx10.6 %s 2>&1 | FileCheck %s --check-prefix NO-TLS
+// RUN: %clang_cc1 -fsyntax-only -triple x86_64-apple-macosx10.7 %s 2>&1 | FileCheck %s --check-prefix TLS
+// RUN: not %clang_cc1 -fsyntax-only -triple arm64-apple-ios7.1 %s 2>&1 | FileCheck %s --check-prefix NO-TLS
+// RUN: %clang_cc1 -fsyntax-only -triple arm64-apple-ios8.0 %s 2>&1 | FileCheck %s --check-prefix TLS
+// RUN: not %clang_cc1 -fsyntax-only -triple thumbv7s-apple-ios8.3 %s 2>&1 | FileCheck %s --check-prefix NO-TLS
+// RUN: %clang_cc1 -fsyntax-only -triple thumbv7s-apple-ios9.0 %s 2>&1 | FileCheck %s --check-prefix TLS
+// RUN: %clang_cc1 -fsyntax-only -triple armv7-apple-ios9.0 %s 2>&1 | FileCheck %s --check-prefix TLS
+// RUN: not %clang_cc1 -fsyntax-only -triple thumbv7k-apple-watchos1.0 %s 2>&1 | FileCheck %s --check-prefix NO-TLS
+// RUN: %clang_cc1 -fsyntax-only -triple thumbv7k-apple-watchos2.0 %s 2>&1 | FileCheck %s --check-prefix TLS
+
+
+__thread int a;
+
+// NO-TLS: thread-local storage is not supported for the current target
+// TLS-NOT: thread-local storage is not supported for the current target
+
+wibble;